OOC/002 410195 A7 B7 五、發明說明（I) 本發明是有關於〜種模製預塑件之熱流道系統，a 特別是有關於一種熱流道系統應用於具有可同時射出成型 多個樹脂預塑件的射出成型機。 技術背景 厚度較薄的容器如聚乙烯塑膠是屬於射出成型的預 塑件’即塑料在模具內以吹拉的方式鑄造成型，此外射出 成型法可一次鑄造多個預塑件。一種稱爲熱流道系統被應 用於製造預塑件的射出成型機，一般而言熱流道系統包含 一個流道機殼、一個由流道機殼縱深方向中心部位延伸到、 流道機殼兩端側面所形成之蓋門及若干噴嘴，噴嘴構件則 安裝於流道機殼內部之上方部位。流道機殼內部之中心部 位設置一熱流道連接蓋門及各噴嘴，其外部之側面兩端則 以支撐架固定於基座上。 流道機殼之外部表面包覆加熱帶，如此可均勻地加熱 整個流道機殼及其構件以保持流道內之融熔樹脂在一定的 溫度。此外，噴嘴及蓋門構件等亦以加熱帶包覆以維持融 熔樹脂之溫度一致並避免其溫度下降。然而’由於機械構 造之緣故，流道機殻縱深方向之中心部位及其尾端側面部 位之溫度還是會往下降。 此溫度下降是由於熱傳導至支撐架及流道機殻周邊構 件所造成之熱傳導損失以及流道機殼周邊構件之輻射熱損 失所引起的。與上述之熱損失相較’熱傳導至中心支撐架 之熱損失可忽略不記.，因爲射出成型設備之熱傳是藉由噴 嘴之接觸而傳導的。當樹脂流經熱流道時，其溫度在流道 本紙張尺度適用中國國家標準<(：^5)六4規格（210*297公釐） (請先Μ讀背面之注意事項再填寫奉頁) ---------訂·ί·^----|*線- 經濟部智慧财產局具工消费合作社印製 II . DOC Oir 41〇：95 A7 II . DOC Oir 41〇：95 A7 經濟部智慧財產局貝工消费合作社印製 B7 五、發明說明（2) 尾_部丨11明_下降，而溫度分佈不均勻將造成預塑件缺邊 (one-sided XVall)的現象。 lit#失可藉由在流道機殻、支撐架及兩側尾端表面包 覆絕緣材料而克服。然而此方式將產生另一缺失，即製造 預塑件時’每一噴嘴需對準一射出成型模具之開口孔隙因 此支撑架與流道機殻間之接合必須相當精確，且射出成型 成之衝力亦是由流道機殼兩端之支撐架作爲力 平衡·之支撐點；若以熱絕緣材料包覆流道機殼與支撐架， 則胃者,之銜接部位極可能產生位移或變形，影響所及流道 ϋ胃ϋ平準度偏移，噴嘴無法與模具開口孔隙對準而造 成樹脂之^曳漏。此外，以機械構造而言，爲防止熱損失而 以熱,絕緣材料包覆流道機殻等，亦有其施行上之困難，因 此欲以熱絕緣材料解決上述之缺失並不可行。 發明槪要 述之緣由，本發明即在於提供一種熱流道系統 應用於預塑件之製造，此系統在同類機型中爲一新穎的結 構’可以用來解決上述之缺失，即藉由加熱流道機殼尾端 兩側以消「余因其尾端部位之熱損失而產生溫度分佈不均勻 之情形。 欲達前項發明之目的，本發明安裝一種新的熱流道系 $於預塑件射出成型模具下方’一熱流道系統包含多個噴 嘴構件’每一噴嘴構件鄰接一模具開口孔隙、一個圓柱狀 的流道機組及其兩側之蓋門。噴嘴構件安裝於流道機殼內 部之上方部位’另於流道機殻內部之縱深方向中心位置安 (請先閱讀背面之注意事項再填寫本頁) --C-裝 -------tr—— 線(.OOC / 002 410195 A7 B7 V. Description of the invention (I) The present invention is about a hot runner system for molded pre-molded parts, a particularly a hot runner system applied to a resin Injection molding machine for plastic parts. BACKGROUND OF THE INVENTION Thin containers such as polyethylene plastic are injection molded pre-molded parts, that is, plastics are blow-drawn in a mold, and injection molding can cast multiple pre-molded parts at one time. An injection molding machine called a hot runner system is used to make pre-molded parts. Generally speaking, the hot runner system includes a runner housing, which extends from the center of the runner housing in the depth direction to both ends of the runner housing. A cover door and a plurality of nozzles are formed on the side, and the nozzle member is installed on the upper part of the inside of the flow channel casing. A hot runner is connected to the cover door and each nozzle at the center of the runner housing, and the two ends of the outer side of the runner are fixed to the base with support brackets. The outer surface of the runner housing is covered with a heating belt, which can evenly heat the entire runner housing and its components to keep the molten resin in the runner at a certain temperature. In addition, the nozzles, door members, etc. are also covered with heating tape to keep the temperature of the molten resin uniform and to prevent the temperature from falling. However, due to the mechanical construction, the temperature of the central portion in the depth direction of the runner casing and the side portion of the tail end will still decrease. This temperature drop is caused by the heat conduction loss caused by the heat conduction to the support frame and the peripheral components of the runner housing, and the radiant heat loss of the peripheral members of the runner housing. Compared with the above heat loss, the heat loss of the heat conduction to the center support can be ignored, because the heat transfer of the injection molding equipment is conducted through the contact of the nozzle. When the resin flows through the hot runner, its temperature is in accordance with the Chinese national standard &(; ^ 5) 6 4 specifications (210 * 297 mm) at the paper scale (please read the notes on the back before filling in the Feng page) ) --------- Order · ί · ^ ---- | * Line-Printed by the Intellectual Property Bureau of the Ministry of Economic Affairs, Industrial Cooperative Cooperative, II. DOC Oir 41〇: 95 A7 II. DOC Oir 41〇 : 95 A7 Printed by B7, Shellfish Consumer Cooperative of Intellectual Property Bureau of the Ministry of Economic Affairs 5. Description of the Invention (2) The tail _ Department 丨 11 Ming _ decreased, and the uneven temperature distribution will cause the pre-plastic part to be one-sided XVall. phenomenon. The lit # loss can be overcome by covering the runner housing, support frame, and the end surfaces of both sides with insulating material. However, this method will produce another deficiency, that is, when manufacturing the pre-molded part, 'each nozzle needs to be aligned with an opening hole of the injection molding mold. Therefore, the joint between the support frame and the runner casing must be quite accurate, and the injection molding force It is also supported by the support frames at both ends of the flow channel casing as the support point for force balance. If the flow channel casing and the support frame are covered with thermal insulation material, the joints of the stomach are likely to be displaced or deformed, affecting The level of the flow channel ϋ gastric ϋ is shifted, and the nozzle cannot be aligned with the opening of the mold, causing resin leakage. In addition, in terms of mechanical structure, in order to prevent heat loss, covering the flow channel casing with heat or insulation materials has its implementation difficulties. Therefore, it is not feasible to solve the above-mentioned defects with heat insulation materials. The reason why the invention is described, the present invention is to provide a hot runner system for the manufacture of pre-plastic parts. This system is a novel structure in similar models. It can be used to solve the above-mentioned shortcomings, that is, by heating the flow The two sides of the rear end of the casing are used to eliminate the "uneven temperature distribution caused by the heat loss of the rear end portion. To achieve the purpose of the preceding invention, a new hot runner is installed in the present invention to be injected on the pre-molded part. Below the molding die, a hot runner system includes a plurality of nozzle members. Each nozzle member is adjacent to a die opening aperture, a cylindrical runner unit and the cover doors on both sides. The nozzle member is installed above the inside of the runner housing. Part 'is also placed at the center of the depth direction inside the runner casing (please read the precautions on the back before filling this page) --C-installation ------- tr ---- line (.
5300；>[|· r)〇C/002 410195 Α7 ______Β7_ 五、發明說明（；？） 裝一熱流道聯接噴嘴及兩側蓋門，流道機殻外部表面則包 覆加熱帶，其尾端兩側面以栓塊構件固定熱流道，並置於 支撐架及基座上。熱流道系統亦包含一安裝置於栓塊構件 內部之加熱器及一包覆栓塊構件外部之加熱帶，其作用爲 補償因傳導及輻射所產生之熱損失’以維持流道機殼周邊 尾端部位之溫度於預設範圍內。 此外每一栓塊構件是由一蓋狀物體（lid body)與插削 (plug shape)所構成，蓋狀物體與流道機殼尾端側面之凹孔 部位（concave portion)組接，另軸體構件（shaft portion)則 與流道之開口（rurmer opening)接合’而流道開口之直徑大 於熱流道之直徑。軸體構件之長度由蓋門外部之蓋狀物體 尾端延伸至近於熱流道之端點部位，軸體構件內部安裝一 匣式加熱器，而蓋狀物體之尾端外部亦安裝一加熱板並以 加熱帶包覆之，加熱器主要是爲補償熱損失而裝設。 經濟部智慧財產局員工消费合作社印製 , <請先閱讀背面之注意事項再填寫本頁) 綜觀上文中有關於流道機殼及其構件等構造之陳述’ 其內部與外部加熱器之作用使得流道機殼及其內部之各栓 塊構件本身可被視爲一加熱構件，因此其周邊組件之傳導 與輻射熱損失的問題即可被克服，而其周邊組件溫度下降 造成溫度分佈不均勻之情形便可獲得解決。如此’以加熱 之方式即可維持整個流道機組之溫度在預設之範圍內，從 而避免造成樹脂預塑件缺邊的現象發生。 圖式說明 以下參照圖式說明本發明之上述和其他目的及其它優 7 本紙張尺度適用中國國家棵準（CNS>A4規格（210 X 297公釐） DOC'/OO： 410195 A7 B7 五、發明說明（ι 第1圖 第2圖 第3圖 第4圖 第5圖 是本發明熱流道系統之透視圖。 是第1圖主要組件之側視圖。 (請先閱讀背面之注意事項再填寫本頁) 是本發明熱流道系統主要組件之透視圖。 是第3圖之側視圖。 按熱流道系統，流道機殼尾端部位在加熱與 未加熱之條件下，其樹脂溫度分佈曲線圖。 圖式標記： 1熱流道系統 2射出成型模具 2a模具開口孔隙 3噴嘴構件 3a噴嘴構件 4流道機殼 5閥門孔隙 6流道機殼尾端兩側之支撐架 線_ 7流道機殼中心位置之支撐架 8基座 9針閥設備 經濟部智慧財產局員工消费合作社印製 10套管 π蓋門 12熱流道 13噴嘴側邊的流道 14針閥 15加熱帶 本紙張K度適用中國國家標準（CNS)A4規格（210 X 297公釐） l)()C/(Μ» 410195 A7 B7 五、發明說明（t) Μ栓塊構件 17蓋狀物體之凹孔 18蓋狀物體 19熱流道之開口端 20軸體構件 21軸體構件之凹孔 22匣式加熱器 23加熱帶 24插削 25螺栓 26加熱板 較佳實施例之說明 爲使本發明能更明顯易懂，下文特舉一較佳實施例， 並配合所附圖式，做詳細說明如下。在此實施例中，描述 模製預製作之熱流道系統，其中每一噴嘴構件具有延伸貫 穿之針閥。 第1、2圖式淸楚地顯示熱流道系統之構造，圖式代 號1表示熱流道系統，其上方爲射出成型模具2。一熱流 道系統1包括：多個噴嘴構件3、一圓柱狀的流道機殼4、 支撐流道機殻4側端之支撐架6及中心位置支撐架7。如 第2圖所示噴嘴構件3鄰接一閥門孔隙5(gate)，並經由閥 門孔隙5導開射出成型模具2之開口孔隙2a，由第2圖顯 示開口孔隙2a位於射出成型模具2橫向底部中心之位置。 噴嘴構件3則按每隔一固定距離安裝於流道機殼4內部之 9 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） {請先M讀背面之;i意事項再填寫本頁) r/k ----I^tr---J.1·!—!線. 經濟部智慧財產局員工消费合作社印製 經濟部智慧財產局員工消费合作社印製 ”叫 iMl· I)(K (… 410195 α7 _ _Β7__ 五、發明說明（t) 上方丨立置，另流道機殼4兩側以支撐架固定於基座8 ,基 座8內部之上方部位則安裝一對氣動式或水壓式之針閥設 備9 . 熱流道1 2女裝於流道機殼4內部，由嵌入套管（bUsh ) 10的蓋門1 1延伸到噴嘴構件3之端點。水平熱流道12之 內部與噴嘴構件3則分別與縱深方向之噴嘴側邊的流道 (nozz丨e-side runner) 13相聯接。針閥14以自動前進或後退 的方式控制噴嘴之開或關，針閥14安裝於針閥設備9內 部並延伸通過流道機殻4與噴嘴側邊的流道13相聯接。 另流道機殼4之外部表面包覆加熱帶15，以維持熱流道12 內熔融樹脂之溫度。 如第3、4圖所示熱流道12貫穿流道機殻4尾端兩側 並以栓塊構件16固定之，而栓塊構件16則嵌入流道機 殼4尾端側面之中心部位。每一栓塊構件16是由一蓋狀 物體18與插削所構成，蓋狀物體18則與流道機殼4尾端 側面之凹孔部位17組接，軸體構件20與流道之開口 19 接合，軸體構件20亦有一內凹孔21與熱流道12之尾端 相嵌接，此外，流道之開口 19之直徑大於熱流道12之直 徑。 部分嵌入栓塊構件16之軸體構件20，其內部裝置一 匣式加熱器22，匣式加熱器22之長度爲蓋門外部之蓋狀 物體18笔部端點到近於內凹孔21的位置。 另蓋狀物體18之外部尾端表面以螺栓（bolt)25緊密 地結合加熱板26與加熱帶23，栓塊構件16與加熱板26 本紙張尺度適用中1國家標準（CNS)A4規格（210 X 297公釐） . --------訂 i-l·^------線 C (屯先間讀背面之注意事項再填寫本頁) ’ Γν^ΜίΡϋ·· IM)C'/(K)2 410195 Α7 Γν^ΜίΡϋ·· IM)C'/(K)2 410195 Α7 經濟部智慧財產局貝工消費合作社印數 五、發明說明（〇 ) 則以插削（pin)24將其鎖定於流道機殼4之尾端。 第5圖爲一流道機殼4內含12個噴嘴構件3在加熱 與未加熱時流道機殼4尾端兩側部位之溫度變化。當以匣 式加熱器22與加熱帶23加熱軸體構件20與蓋狀物體18 至250°C時，流道機殼4尾端兩側部位之溫度由250°C上 升至270°C，因此由幅射及傳導引起之熱損失而造成流道 機殻4尾端部位溫度下降之情形，將可避免。故可維持流 道機殼4尾端部位之溫度在預設溫度之範圍內（265°C至 285°C)。此外流道機殼4縱深方向中心部位之溫度亦有輕 微之上升，因此，加熱後較未加熱時，其整體流道機殼4 及其構件之溫度分佈較爲均勻一致。 如上文所述，藉由本發明“熱流道系統”可有效地解 決流道機殼4尾端兩側之熱幅射及其支撐架之熱傳導所引 起之熱損失的問題。因此藉由加熱的方式，可防止流道機 殻4兩側尾端部位之溫度下降且可均勻有效地維持其溫度 在預設溫度之範圍內。故得以避免噴嘴構件3a在射出成 型時，因樹脂溫度下降造成預塑件缺邊的現象。 雖然本發明已以一較佳實施例揭露如上，然其並非 用以限定本發明，任何熟習此技藝者，在不脫離本發明之 精神和範圍內，當可作些許之更動與潤飾，因此本發明之 保護範圍當視後附之申請專利範圍所界定者爲準。 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） -----------------------'^i1^---1!^/\ ..1 :(务先閱讀背面之注意事項再填寫本頁)5300; > [| · r) 〇C / 002 410195 Α7 ______ Β7_ V. Description of the invention (;?) A hot runner connection nozzle and cover doors on both sides are installed, and the outer surface of the runner housing is covered with a heating belt, and its tail The hot runners are fixed on both sides of the end with bolt block components, and are placed on the support frame and the base. The hot runner system also includes a heater installed inside the plug member and a heating belt covering the outside of the plug member. Its function is to compensate for the heat loss due to conduction and radiation 'to maintain the peripheral tail of the runner housing. The temperature of the end part is within a preset range. In addition, each plug member is composed of a lid body and a plug shape. The lid body is connected to the concave portion on the side of the rear end of the flow channel casing, and the other shaft The body portion (shaft portion) is engaged with the runner opening, and the diameter of the runner opening is larger than the diameter of the hot runner. The length of the shaft body member extends from the tail end of the cover object outside the cover door to the end position near the hot runner. A box heater is installed inside the shaft body member, and a heating plate is also installed outside the tail end of the cover object. Covered with heating tape, the heater is mainly installed to compensate for heat loss. Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs, < Please read the notes on the back before filling out this page) A comprehensive review of the above statement about the structure of the runner housing and its components, etc. 'The role of its internal and external heaters As a result, the runner housing and the plug components inside it can be regarded as a heating component, so the problems of conduction and radiation heat loss of its peripheral components can be overcome, and the temperature distribution of its peripheral components causes uneven temperature distribution. The situation can be resolved. In this way, the temperature of the entire flow channel unit can be maintained within a preset range by heating, so as to avoid the phenomenon of causing the edge of the resin preplastic to occur. Description of the drawings The above and other objects and other advantages of the present invention will be described below with reference to the drawings. 7 The paper size is applicable to China National Standard (CNS > A4 specification (210 X 297 mm) DOC '/ OO: 410195 A7 B7 V. Invention Explanation (ι Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 is a perspective view of the hot runner system of the present invention. It is a side view of the main components of Figure 1. (Please read the precautions on the back before filling out this page ) Is a perspective view of the main components of the hot runner system of the present invention. It is a side view of FIG. 3. According to the hot runner system, the resin temperature distribution curve of the tail end portion of the runner housing under heated and unheated conditions. Marks: 1 Hot runner system 2 Injection molding mold 2a Mould opening aperture 3 Nozzle member 3a Nozzle member 4 Flow path casing 5 Valve aperture 6 Supporting support lines on both sides of the end of the flow path casing Support frame 8 base 9-pin valve equipment Intellectual Property Bureau of the Ministry of Economic Affairs Employee Cooperative Cooperative printed 10 bushings π cover door 12 hot runner 13 nozzle side runner 14-pin valve 15 heating tape The paper K degree applies to Chinese national standards ( CNS) A4 specification (210 X 297 mm) l) () C / (Μ »410195 A7 B7 V. Description of the invention (t) M plug member 17 recess of cover object 18 cover object 19 open end of hot runner 20 shaft body member 21 The recessed hole of the shaft body member 22 Cassette heater 23 Heating belt 24 Insertion 25 Bolt 26 Heating plate Description of the preferred embodiment In order to make the present invention more obvious and easy to understand, a preferred embodiment is given below and cooperates with The drawings are described in detail as follows. In this embodiment, a pre-molded hot runner system is described in which each nozzle member has a needle valve extending therethrough. Figures 1 and 2 show the hot runner system neatly. The structure code number 1 indicates a hot runner system, and above it is an injection molding die 2. A hot runner system 1 includes: a plurality of nozzle members 3, a cylindrical runner housing 4, and a side supporting the runner housing 4. The end support frame 6 and the center position support frame 7. As shown in FIG. 2, the nozzle member 3 is adjacent to a valve aperture 5 (gate), and the injection aperture 2a of the molding die 2 is guided through the valve aperture 5 to open the aperture 2a of the mold 2, as shown in FIG. The display opening hole 2a is located at the center of the lateral bottom of the injection molding die 2. The mouthpiece 3 is installed inside the runner housing 4 at a fixed distance every 9th. The paper size is applicable to the Chinese National Standard (CNS) A4 (210 X 297 mm) {Please read the back; i notice (Fill in this page again) r / k ---- I ^ tr --- J.1 ·! —! Line. Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs. · I) (K (... 410195 α7 _ _Β7__ V. Description of the invention (t) The upper part is placed vertically, and the runner frame 4 is fixed to the base 8 on both sides with support brackets. For pneumatic or hydraulic needle valve equipment 9. The hot runner 12 is inside the runner housing 4 and extends from the cover door 1 1 of the embedded bushing (bUsh) 10 to the end of the nozzle member 3. The inside of the horizontal hot runner 12 and the nozzle member 3 are respectively connected to the nozzle side runners 13 in the depth direction. The needle valve 14 controls the opening or closing of the nozzle in an automatic forward or backward direction. The needle valve 14 is installed inside the needle valve device 9 and extends through the flow channel casing 4 to be connected to the flow channel 13 on the side of the nozzle. In addition, the outer surface of the runner body 4 is covered with a heating belt 15 to maintain the temperature of the molten resin in the hot runner 12. As shown in Figs. 3 and 4, the hot runner 12 penetrates both sides of the tail end of the runner case 4 and is fixed by a plug member 16, and the plug member 16 is embedded in the center portion of the side of the tail end of the runner case 4. Each bolt member 16 is composed of a cover-like body 18 and a cutting, the cover-like body 18 is connected with the recessed hole portion 17 on the side of the tail end of the flow channel casing 4, and the shaft body member 20 and the opening of the flow channel 19, the shaft body member 20 also has an inner recessed hole 21 engaged with the tail end of the hot runner 12, and the diameter of the opening 19 of the runner is larger than the diameter of the hot runner 12. The shaft body member 20 which is partially embedded in the bolt member 16 is internally provided with a cassette heater 22, and the length of the cassette heater 22 is from the end of the pen-shaped object 18 covering the door to the inner recess 21 position. In addition, the outer end surface of the cover-shaped object 18 is tightly combined with the heating plate 26 and the heating belt 23, the bolt member 16 and the heating plate 26 with bolts 25. This paper applies the national standard (CNS) A4 specification (210 X 297 mm). -------- Order il · ^ ------ line C (read the precautions on the back first and then fill out this page) 'Γν ^ ΜίΡϋ ·· IM) C' / (K) 2 410195 Α7 Γν ^ ΜίΡϋ ·· IM) C '/ (K) 2 410195 Α7 The Intellectual Property Bureau of the Ministry of Economic Affairs, the Shellfish Consumer Cooperative, printed the number five, and the description of the invention (〇) will be inserted (pin) 24 will be It is locked at the rear end of the runner housing 4. Figure 5 shows the temperature changes of the two sides of the tail end of the runner housing 4 when the nozzle housing 3 contains 12 nozzle members 3 when heated and unheated. When the box heater 22 and the heating belt 23 are used to heat the shaft member 20 and the cover object 18 to 250 ° C, the temperature on the two sides of the tail end of the runner casing 4 rises from 250 ° C to 270 ° C. The situation that the temperature of the tail end portion of the runner casing 4 drops due to the heat loss caused by radiation and conduction can be avoided. Therefore, the temperature at the end of the runner casing 4 can be maintained within a preset temperature range (265 ° C to 285 ° C). In addition, the temperature of the center portion of the flow channel casing 4 in the depth direction also slightly rises. Therefore, the temperature distribution of the overall flow channel casing 4 and its components is more uniform when it is not heated after heating. As described above, the "hot runner system" of the present invention can effectively solve the problem of heat loss caused by the heat radiation on both sides of the tail end of the runner casing 4 and the heat conduction of the support frame. Therefore, by heating, the temperature at the tail end portions of both sides of the runner casing 4 can be prevented from falling and the temperature can be maintained uniformly and effectively within a preset temperature range. Therefore, it is possible to avoid the phenomenon that the preform is chipped due to the resin temperature drop during the injection molding of the nozzle member 3a. Although the present invention has been disclosed as above with a preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art can make some modifications and retouching without departing from the spirit and scope of the present invention. The scope of protection of the invention shall be determined by the scope of the attached patent application. This paper size applies to China National Standard (CNS) A4 (210 X 297 mm) ----------------------- '^ i1 ^ --- 1 ! ^ / \ ..1: (Be sure to read the notes on the back before filling in this page)